 |
|
|
|
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Everyone knows the phenomenon that happens when you put a stick into
water how it looks like it bends. Well, I made it in povray to see how
does it do it:
Post a reply to this message
Attachments:
Download 'test.jpg' (34 KB)
Download 'test2.jpg' (20 KB)
Preview of image 'test.jpg'
Preview of image 'test2.jpg'
|
|
| |
| |
|
|
|
|
| |
| |
|
|
(Btw. the bowl is an isosurface)
--
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):_;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
| This should be physically correct except for the shadow in the water
| (since the light rays do not bend when calculating shadows).
| So I tried using photon mapping to get the physically correct shadows.
| But as you can see, the stick is shadowed. Why?
The highlighting inside the bowl is also dimmed. I'd think it were
'ignore_photons' being used but I don't see why the highlight would be
affected anyway.
Bob
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
I would like to see how you defined the liquid, before answering... :)
Grim
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
GrimDude <vos### [at] yahoo com> wrote:
: I would like to see how you defined the liquid, before answering... :)
pigment { rgbf <1,1,1,.95> }
finish { reflection .2 specular .5 roughness .02 }
interior { ior 1.33 }
photons { target refraction on }
--
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):_;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Well, too much time went by before your reply. I have to ask why you used
rgbf rather then rgbt, but otherwise I have forgotten the question? :D
Sorry. :)
Grim
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
GrimDude <vos### [at] yahoocom> wrote:
: Well, too much time went by before your reply. I have to ask why you used
: rgbf rather then rgbt, but otherwise I have forgotten the question? :D
Water filters light. Just think about colored water.
Why the stick is shadowed using photons? It doesn't look right.
--
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):_;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
You should make 4 test to see
1) try rgbt instead of rgbf
2) try reflection on for water
3 et 4 combination of the two above.
But I don't hope this could work.
Please keep us inform about your result!
Thanks.
>
> GrimDude <vos### [at] yahoocom> wrote:
> : Well, too much time went by before your reply. I have to ask why you used
> : rgbf rather then rgbt, but otherwise I have forgotten the question? :D
>
> Water filters light. Just think about colored water.
>
> Why the stick is shadowed using photons? It doesn't look right.
>
> --
> main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
> ):_;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Ah, yes, I smelled the filter when I first saw the images, but wanted to be
sure. I very seldom use filter anymore. It has it's uses, but usually messes
up my work, so I avoid it.
True, colored liquid should modify the outcome a tad, but water is clear
(usually). It appears blue because it is reflecting sky, I think? That's the
only way I can get water to look like water in my scenes, anyway. By adding
sky, and often times a height_field too, I get good results (seldom great,
but I am a dweeb).
I would like to see the end results of your efforts here, though.
KOT,
Grim
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
